VND830

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VND830 is a PMIC (Power Management IC) device designed by NEC. It is a multifunction device that combines high-side and low-side switch, and load driver functions. The VND830 is a versatile, low-power, low-voltage and low-noise device with 20V external applied voltage and 4V internal supply voltage. In addition, it supports both parallel and serial control configurations and an adjustable slew rate, low voltage power-on reset, and high-side load current sensing.

VND830 has a wide range of applications including automotive power control, battery management systems, and industrial systems. It can be used in various types of system control and power management applications such as low-cost alternator control, fan control, electric actuator control, and automotive body ECU power control. In addition, it can be used in LEDs, white goods, and intelligent electronic device control logic.

VND830 consists of two switches, a high side and a low side, and a single load driver. The high side switch has an output rating of 6A and an operating voltage range of 9V to 20V. The low side switch has an output rating of 3A and an operating voltage range of 4.5V to 15V. The load driver is capable of driving one or two loads simultaneously and has an output rating of 12A with an operating voltage range of 4.5V to 20V. Additionally, it has an adjustable slew rate and a low voltage power-on reset.

VND830 works based on the MOSFET technology. The high-side and low-side switch use a power MOSFET to control the load. The load driver is composed of multiple MOSFETs, which are arranged in a half-bridge topology with one high-side MOSFET and one low-side MOSFET. Two independent p-channel MOSFETs are used to control the high-side switch and the low-side switch, while the load driver uses two n-channel MOSFETs. The VND830 has an integrated charge pump circuit that allows it to drive the high-side and low-side switches at a very low voltage.

VND830 also has a current sensing circuit. The current sensing circuit senses the output current of the high-side switch and the load driver and uses it as information to control the switching operations. It also provides feedback to the controller IC to monitor the load current and to adjust the operation of the switching circuitry. This allows for precise and efficient power control of the load.

The VND830 has several integrated protection features that protect the device from against over-voltage and over-current conditions. It also provides temperature protection and a Brown-out reset for even greater protection. In addition, it has an adjustable slew rate and a low voltage power-on reset.

VND830 is a highly integrated PMIC device that combines high-side and low-side switch, and load driver functions. It provides multiple protection features and can be used in a variety of system control and power management applications. The integrated current sensing circuit allows it to precisely control the load current while providing feedback to the controller IC to monitor the output current. It is a low-power, low-voltage and low-noise device that is suitable for a variety of industrial, automotive and consumer applications.

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